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Finding the Fourth Proportional to 678,162.17, 936,640.51 and 446,624.14

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Solution

The fourth proportional to 678,162.17, 936,640.51 and 446,624.14 is: 616,852.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,162.17 : 936,640.51 = 446,624.14 : x
  2. Step 2: Convert to fraction form
    678,162.17/936,640.51 = 446,624.14/x
  3. Step 3: Cross multiply
    678,162.17x = 936,640.51 × 446,624.14
  4. Step 4: Simplify right side
    678,162.17x = 418,326,258,809.75
  5. Step 5: Solve for x
    x = 418,326,258,809.75/678,162.17
  6. Step 6: Final answer
    x = 616,852.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.